Please use this identifier to cite or link to this item: http://krishikosh.egranth.ac.in/handle/1/5810146250
Authors: Thakur, Karuna
Advisor: Joshi, Neelam
Title: Virulence of entomopathogenic fungi on cabbage aphid, Brevicornye brassicae (Linnaeus)
Publisher: Punjab Agricultural University, Ludhiana
Language: en
Type: Thesis
Pages: 59
Keywords: Brevicornye brassicae, entomopathogenic fungi, Lecanicillium lecanii, Trichogrammatids, tween-80
Abstract: One fungus and two bacteria were isolated from insect cadavers collected from different cabbage fields of Punjab. On the basis of phenotypical characteristics, fungus (PAU F1) and two bacteria (PAU LB1 and PAU SB2) were presumptively identified as Aspergillus spp., Micrococcus spp. and Staphylococcus spp., respectively. The bioassay studies of fungal bioformulation against nymphs of Brevicornye brassicae recorded maximum cumulative per cent mortality (53.33%) in Lecanicillium lecanii MTCC 956 and commercial formulation of L. lecanii @12g/l which were at par with each other. Evaluation of fungal formulation supplemented with adjuvants against nymphs of B. brassicae recorded maximum per cent increase in mortality over control (7.89%) and (6.46%) in L. lecanii + Tween-80 @ 1% and M. anisopliae + Tween-80 @1%, respectively. Biosafety of six entomopathogenic fungal formulation on adult emergence of Trichogrammatids was studied. The minimum per cent reduction over control 6.60 and 7.31 per cent was recorded in T. chilonis and T. pretiosum in treatment with L. lecanii @12g/litre. Thus, L. lecanii was most compatible to Trichogrammatids.
Subject: Microbiology
Theme: Virulence of entomopathogenic fungi on cabbage aphid, Brevicornye brassicae (Linnaeus)
Research Problem: Virulence of entomopathogenic fungi on cabbage aphid, Brevicornye brassicae (Linnaeus)
These Type: M.Sc
Issue Date: 2020
Appears in Collections:Thesis

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